struts2多文件上传

分三步进行：

第一步：在WEB-INF/lib下加入commons-fileupload-1.2.1.jar、commons-io-1.3.2.jar

第二步：把form表单的enctype设置为：“multipart/form-data”，如下：

<form action="${pageContext.request.contextPath }/ufActionuploadFile" method="post" enctype="multipart/form-data">
图片1：<input type="file" name="images" /><br />
图片2：<input type="file" name="images" /><br />
图片3：<input type="file" name="images" /><br />
图片4：<input type="file" name="images" /><br />
图片5：<input type="file" name="images" /><br />
<input type="submit" value="提交" />
</form>

第三步：在action中添加属性，action代码如下：

import java.io.File;
import java.io.IOException;

import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;

public class UploadFileAction {

private File images[];// 文件列表

private String imagesContentType[];// 文件类型列表

private String imagesFileName[];// 文件名称列表

private String message;

public File[] getImages() {
return images;
}

public void setImages(File[] images) {
this.images = images;
}

public String[] getImagesContentType() {
return imagesContentType;
}

public void setImagesContentType(String[] imagesContentType) {
this.imagesContentType = imagesContentType;
}

public String[] getImagesFileName() {
return imagesFileName;
}

public void setImagesFileName(String[] imagesFileName) {
this.imagesFileName = imagesFileName;
}

public String getMessage() {
return message;
}

public void setMessage(String message) {
this.message = message;
}

public String uploadFile() {
try {
if (this.images != null) {
String realpath = ServletActionContext.getServletContext()
.getRealPath("/images111");
for (int i = 0, j = this.images.length; i < j; i++) {
File image = images[i];
System.out.println(realpath);
if (image != null) {
File savefile = new File(realpath,
this.imagesFileName[i]);
if (!savefile.getParentFile().exists()) {
savefile.getParentFile().mkdirs();
}
FileUtils.copyFile(image, savefile);
}
}
}
message = "上传文件成功!";
} catch (IOException e) {
e.printStackTrace();
message = e.getMessage();
}
return "success";
}
}